211304103225 has 12 divisors (see below), whose sum is σ = 349356117456. Its totient is φ = 112695521680.

The previous prime is 211304103187. The next prime is 211304103251. The reversal of 211304103225 is 522301403112.

It is not a de Polignac number, because 211304103225 - 2⁶ = 211304103161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211304103195 and 211304103204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1408693947 + ... + 1408694096.

It is an arithmetic number, because the mean of its divisors is an integer number (29113009788).

Almost surely, 2^211304103225 is an apocalyptic number.

211304103225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

211304103225 is a deficient number, since it is larger than the sum of its proper divisors (138052014231).

211304103225 is a wasteful number, since it uses less digits than its factorization.

211304103225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2817388056 (or 2817388051 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 211304103225 its reverse (522301403112), we get a palindrome (733605506337).

The spelling of 211304103225 in words is "two hundred eleven billion, three hundred four million, one hundred three thousand, two hundred twenty-five".